point/struct-mutable-2/Point.cs - The struct Point - mutable, where move returns a Point.

Lecture 4 - slide 13 : 29 Program 4

using System;

public struct Point {
  private double x, y;

  public Point(double x, double y){
    this.x = x; this.y = y;
  }

  public double Getx (){
    return x;
  }

  public double Gety (){
    return y;
  }

  public  Point  Move(double dx, double dy){
    x += dx; y += dy; 
    return this;  // returns a copy of the current object
  }

  public override string ToString(){
    return "Point: " + "(" + x + "," + y + ")" + ".";
  }
}